So that said, looks like this unit might actually do what you want. Seems a little pricey but depends on how bad you want it.

Was CSVEd missing some feature that you needed? Or was the interface just too different?

No, I apologize, I see what you mean, I was not reading the post carefully enough and was thinking the problem was the second screen in the capture of the entire workspace. If you're capturing just the second screen, you would like it to be 1920x1080 instead of 2560x1440 which is the highest rez of your screens.

Did you select something on your second screen and choose the "Grab Current Screen" option for your example? I don't recall the keypress for that because I swap two of mine. I always (99.99% of the time) use the "Grab Selected Region" option and that's what I map my PrtScr key to. If you use that option you should be able to select the whole screen and it should come out correct.